Remove unneeded changelog

The changelog of
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/18027
was in the wrong location.

[ci skip]

changelogs/no-rm-rf-gitlab-basics.yml

----
-  title: Do not use '-f' with 'rm' in gitlab-basics docs
-  merge_request: 18027
-  author: Elias Werberich
-  type: changed